Electric-car truck



(No Model.)

0. P. WINKLER.

ELECTRIC GAR TRUCK.

- No. 510,661. Patented Dec. 12,1893.

I i I illll? WITNESSES: INVENTOR 66M @VW Ulark-rZTW/Zk/er aw BY IIII YMAL umouum couPAnY.

UNITED STATES PATENT ()EEIcE.

CHARLES F. IVINKLER, OF TROY, NEW YORK.

ELECTRIC-CAR TRUCK.

SPECIFICATION forming part of Letters Patent No. 510,661, dated December12, 1893.

Application filed November 26, 1892. Serial No. 453,273. (No model.)

.0 ct whom it may concern.-

Be it known that I, CHARLEs F. WINKLER, a citizen of the United States,residing at Troy, in the county of Rensselaer and State of New York,have invented certain new and useful Improvements in Electric-CarTrucks, of which the following is a full, clear, and exact description.

My invention relates to electrically pro pelled vehicles and has specialreference to the construction of the electric motor with its mountingand connection with the car axles.

The invention consists of an electric motive apparatus having two rotaryarmatures located in a single magnetic circuit, in combination with twocar axles with which the armatures are respectively connected bygearing.

The details of the invention will be described with reference to theaccompanying drawings, in which Figure 1 represents a vertical sectiontaken at right-angles to a pair of car axles showing my motor inelevation mounted upon the axles and connected thereto through gearing.Fig. 2 is a plan of the same, and Fig. 3 is a detail.

A, A respectively represent two axles of a car the wheels of which arerepresented by Ct.

B, 13 represent two parts of a field magnet structure; these are formedwith pole pieces attheir extremities and the two parts stand parallel toeach other so that an armature space or field is formed at each end. Thecoils are represented by b and are wound upon the middle portions of theparts B, B and the current is to be passed through them in such adirection that a single magnetic circuit will be established which willinclude the two fields, in series, as it were. The extremities of thefield magnet structures are connected together by brass or othernonmagnetic plates c, c, and the whole structure is mounted upon andsupported by the axles by means of boxes or bearings d which are boltedto the opposite edges of the brass plates 0, as shown in Fig. 2. Theseboxes are made separate from the plates, so that their cost ofconstruction may be cheapened by making them of iron or steel. The endsof the brass plates to which the boxes are connected are extended pastthe pole pieces as shown in Fig. 2, a sufficient distance to preventshort circuiting of the lines of force through the boxes. The polepieces have brackets I) cast upon them, between the extremities of eachpair of which a cross piece 6 of non-magnetic material is secured. Inthis cross piece a bearing is formed in which the armature axles e aremounted. The pole pieces are also provided with bolt holes 9' or othermeans for attaching a short circuiting bar of iron g which is placedacross from pole to pole in case either of the armatures becomesdisabled as will hereinafter be described. The armatures e are carriedon these axles and acommutator for each of them is also mounted upon theaxle and housed between the brackets b. The armature axles are extendedbeyond their hearings on one side and carry pinions e which engage withgear wheels f, f, on the respective axles. These pinions are preferablymounted upon their shafts in such a manner as to be removable therefromat will; that is, they may be confined in place by a nut a so that, whendesired, the pinion may be removed and the armature thereby disconnectedfrom the axle which it drives. The gearing for both axles is shownlocated on the same side of the truck but it will be understood that itmay be placed on opposite sides, if desired.

In a structure of this character, both armatures are in the samemagnetic circuit and are therefore similarly affected by changestherein, and as the armatures act uniformly upon the axles, regulationmay be easily affected. In case one of the armatures should becomedisabled the pinion on its shaft may be removed and the car driven bythe other armature, the magnetic circuit being perfected by adjustingthe iron bar g across the field of force, thus completely bridging thearmature space.

Having described my invention, I claim- 1. In an electric car truck, thecombination with two axles, of two magnetically separated field magnetstructures B, B, non-magnetic plates 0, c, mechanically connecting themtogether, separate axle boxes secured to said plates and surroundingthev car axles two said,magnetic circuit anda detachable short armaturesacted upon by said field magnet circuit'ing bar g for the. purpose. setforth. to structures and gearing connecting the ai'rna- In testimonywhereof I subscribe my signature respectively with the axles,substantially ture in presence of two witnesses. 5 as described. CHARLESF. WINKLER.

2. An electric motive device, consisting of Witnesses: a field magnetstructure constituting a single WM. A. ROSENBAUM,

magnetic circuit two armatures located in J 0s. J. UHL.

